What’s going to happen to all the marble once it’s removed from First Canadian Place? Is there any chance I could buy some of it?

It’s true, Toronto’s tallest office tower will soon be rid of 6,000-odd tons of ­Carrara marble, to be replaced by glass panels. The main reason for the $100‑million-plus facelift is safety. In 2007, a 300-pound chunk plummeted from the tower’s 60th storey onto the roof of the third-floor mezzanine. Hazards aside, 35 winters have turned the once snow white stone the colour of slush.

If you’re still keen to own a part of the city’s architectural past, Brookfield Properties, the building manager, hopes to make some of it available to the public for free in the spring. The rest of it will be recycled, crushed into rooftop ballast (a heavy layer that secures roof insulation) or donated to a local art group.• Question from Maury Neufeld, Mississauga Wondering about the waterfront? Curious about construction? Perplexed by politics? Ask the Urban Decoder a question here.